I think my 727 is fried. Now I'm at a crossroads...
Yes, I was measuring from the top of the pressure plate to the bottom of the inside arc. I'll be at the shop in a couple hours and I'll post some pictures.
But you know what, here's why I shouldn't work while sleep deprived. For some reason I was thinking the clearance specs on both drums was the same, and I think I ended up putting an extra steel in there. I betcha that's what happened and why the clearance is so tight, because now that I'm rested and looking back on my literature, I see the direct drum clearance is three times what the forward drum is.
Don't do what I do, folks.